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[赖世雄新闻听力通] 赖世雄英语新闻听力通(MP3+中英字幕) 第57期:汽车废气会引发心脏病
(WASHINGTON, Reuters)Research shows that two hours of exposure to elevated levels of car emissions raises the likelihood of a heart attack.（路透社华盛顿电）研究显示，接触高浓度汽车排废气达两个小时时，会提高心脏病发作的可能性。2016-05-30 编辑：clover
